Eppelheim is a city in northern Baden-Württemberg bordering Heidelberg. It belongs to the district Rhein-Neckar-Kreis. Eppelheim is situated in …Eppelheim is a city in northern Baden-Württemberg bordering Heidelberg. It belongs to the district Rhein-Neckar-Kreis. Eppelheim is situated in the valley of the Upper Rhine southwest of the hills of the Odenwald and directly on the Bundesautobahn 5.